WATTS IOM-T-563 Tekmar WiFi Thermostat Installation Guide
Application 563-4
The WiFi Thermostat 563 operates a two-stage water-to-air heat pump for heating and cooling.
The heat pump absorbs or rejects heat to a hydronic water loop that is heated by a boiler and
cooled using a cooling tower to maintain a constant temperature of approximately 70°F (21°C).
M
e
c
h
a
n
i
c
a
l
Legend
B1 = Boiler
C1= Cooling Tower
BP = Boiler Pump
CP= Cooling Tower Pump
HP1 = Heat Pump
PS = System Pump
T1 = WiFi Thermostat 563
V1 = Heat Pump Loop Valve
Acc1
V1
C1
PS
CP
G
Y1 Y2
O
W1
HP1
B1
T1
BP
Electrical
VLV
VLV
WiFi Thermostat 563
Thermostat
jumpers:
J1 = On
J2 = On
J3 = On
V1
Acc1
Acc1
Acc2
O/B
Acc2
O/B
C
R
Rh1
W1
Rh2
W2
Rc
field jumper wire
from Rh1 to Acc1
and Rh1 to Acc2
O
C
AWAY
SEN
COM
R
W
Y1
Y2
G
S1
S2
S3
Y1
Y2
G
J1 J2 J3
HP1
ON
RELAY
POWER
RH
3V3
OFF
JUMPER
9
| General | Details |
|---|---|
| Name | WATTS IOM-T-563 Tekmar WiFi Thermostat Installation Guide |
| Make | WATTS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.63 MB |

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